Tension-FreeU-shape Folding TestFurther Improve Reliability

Ver. 1.0

Safety Note To ensure your safe and proper usage, please observe all the manuals before using these machines.

To improve our products, please note that their outer appearances and/or designs are subject to change without notice.

YUASA SYSTEM CO., LTD.

！

https://www.yuasa-system.jp/en

YUASA SYSTEM ENDURANCE TEST SYSTEM

Bending Torsion Folding Rolling Tension

Laboratory Automation

Factory Automation

Research & Development

HEAD OFFICE

KIBITSU FACTORY

TOKYO OFFICE

OSAKA OFFICE

No.6 KUME, KITA-KU, OKAYAMA-CITY 701-0144 JAPAN

2292-1 KIBITSU, KITA-KU, OKAYAMA-CITY 701-1341 JAPANPHONE : +81-86-287-9030   FAX : +81-86-287-2298

SHINBASHI SN BLDG. 5-7-10 SHINBASHI, MINATO-KU, TOKYO 105-0004 JAPANPHONE : +81-3-3578-8515   FAX : +81-3-3578-8516

8F, NLC SHIN-OSAKA EARTH-BLDG. 5-1-3 MIYAHARA, YODOGAWA-KU, OSAKA-CITY 532-0003 JAPANPHONE : +81-6-6394-8175   FAX : +81-6-6397-2632

Our product information is also available on

Laboratory Automation

Factory Automation

Research & Development

0201

Further Improve ReliabilityYUASA SYSTEM Co., Ltd. will Research and Develop required systems through quickly getting the worldwide trend of product developments or test standards. And will provide various solution systems (Laboratory Automation) for customer’s product development process, or systems for Factory Automation and quality control.

Rotating Center

Tensionoccurson sample

Research & Development

0403

Folding Test without Tension nor Friction

General Folding Test Tension-Free U-shape Folding Test

When conducting test with equipment shown in the above diagram, a large tension occurs

on the sample when the test starts. The cause of this is clear when drawing a circle with

radius the same length as the sample on the movement track of the test machine. The

length of the sample is too short against the movement track of the clamp. If one uses a rod,

this becomes more remarkable and occurs friction as well. This causes the unexpected

breaks and disperse in the test results in actual test.

Problem During General Folding Test

Purpose of this test is to evaluate the endurance against bending load. In order to solve the problem,

YUASA propose to change the movement of the sample without changing this purpose. When the

sample movement is changed to that the one end of the sample moves straightly forward to the other

end, it enables to apply only the bending load, without applying tension.

On “Tension-Free U-shape Folding Test”, the sample is attached on to the tilt clamp with horizontally

stretched, and then is stretched repeatedly. At the timing of the sample shrank, tilt clamp moves to

downward, and make the sample be bent naturally.

New Method For Solving The Problem

Rupture

Delamination

Delamination

Tension Compression

Rupture

Tension CompressionFriction

Delamination

Research & Development

0605

Tension-Free U-shape Folding Test Jig Changes Occur on Bending Load Only

Folding Test without Tension nor Friction

DMX-FS

Changes Occur on General Bending Test

Generally, the sample consists of multiple layers. Compression for the inside, and Tension for the

outside may occur on the bent sample. So, on the test with using “Tension-Free U-shape Folding

Test Jig”, may cause rupture by tension / delamination by compression at the center of bending

point, or delamination by stretch at the flat area.

These changes prove that this test succeed to apply the bending load only. On general folding

test, tension or friction caused by rod, could cause rupture or delamination at unexpected area.

Research & Development

0807

DLDMLH-FS

Small Desk Top Model Endurance Test MachineTension-Free U-shape Folding Test

ENDURANCE TEST

Maximum sample thickness : 3 mm

Bending radius : 0～18 mm

Operating speed : 10～90 rpm

Maximum sample width : 224 mm

Minimum sample length : 56+clamp space mm

Dimension : 743 mm x 485 mm

Bending angle : 0°～180°

Operating stroke : 0～±60 mm

Weight : approx. 29 kg (including cover weight)

Maximum sample thickness : 3 mm

Bending radius : 0～50 mm

Operating speed : 10～90 rpm

Maximum sample width : 245 mm

Minimum sample length : 46+clamp space mm

Dimension : 1260 mm x 675 mm

Bending angle : 0°～180°

Operating stroke : 0～±120 mm

Weight : approx. 72 kg (including cover weight)

DLD-FS

Desk Top Model Endurance Test MachineTension-Free U-shape Folding Test

Laboratory Automation

1009

Maximum sample thickness : 3 mm

Bending radius : 0～50 mm

Operating speed : 10～90 rpm

Dimension : W 2540 mm x D 2450 mm x H 1980 mm

Maximum sample width : 245 mm

Minimum sample length : 46+clamp space mm

Applicable setting range : Temp. -40～ +90˚C Humid. 30.0～95.0%Rh

Movement / Speed of the sample can be changed by interlocking with presetting of Temperature / Humidity.

ENDURANCE TEST

ENVIRONMENTAL TEST

STEP 2

STEP 1

STEP 3

STEP 4

Set thermo-hygrostat to 85˚C/90%Rh.

Wait 2 hours maintaining thermo-hygrostat at

85˚C/90%Rh.

Conduct the test 100,000 times with

thermo-hygrostat set at 60 rounds/minute.

Adjust the thermo-hygrostat to room

temperature (24˚C/30%Rh) and �nish the

operation.

Bending angle : 0°～180°

Operating stroke : 0～±120 mm

Weight : approx. 850 kg

CL09-typeD01-FSC90

Constant Temperature and Humidity Environment Endurance Test Machine

Tension-Free U-shape Folding Environmental Test For Planar Materials

Example Using Program Operation

Connecting LAN Cable

Resistance Meter

Sample

Connecting Lead

Connecting USB Cable

Tension-FreeU-shape Folding Test JigDMX-FS

Small Desktop Model Endurance Test Machine

DLDM111LH

Software for Programmed Operation

Laboratory Automation

1211

Synchronization

[Small Desktop Model Endurance Test Machine DLDM11LH], which is the drive source to

operate the “Tension-Free U-shape Folding Test Jig”, can be operated and monitored via PC

or Tablet. For example, on this case, series of endurance tests and measurement processes,

such as measuring the Conductor resistance at required timing, are programmed, by

presetting the number of operations and variation of operation speeds.

ENDURANCE TEST

MEASUREMENTMeasurement devices for various samples can be connected via PC, so this enables to synchronize the measurement

process and endurance test process.

Application Example 1Programmed operation for measuring conductor resistance

Tension-FreeU-shape Folding Test Jig

Cartridge

Small Desktop ModelEndurance Test Machine

DLDM111LH

Microscope

Laboratory Automation

1413

This example is the case to check the change of sample condition during the endurance

test. On this case, by using the cartridge which unite the sample and the jig around the

sample, the sample component can be removed without removing the sample itself from

the endurance test machine. And only to move the sample component on to another jig on

microscope, it can be measured by microscope.

ENDURANCE TEST

MEASUREMENTYUASA SYSTEM provides various Test Jigs, so that to measure the Samples easily during the Endurance Test.

Application Example 2Measurement during the TEST

Tension-FreeU-shape Folding TestFurther Improve Reliability

Ver. 1.0

Safety Note To ensure your safe and proper usage, please observe all the manuals before using these machines.

To improve our products, please note that their outer appearances and/or designs are subject to change without notice.

YUASA SYSTEM CO., LTD.

！

https://www.yuasa-system.jp/en

YUASA SYSTEM ENDURANCE TEST SYSTEM

Bending Torsion Folding Rolling Tension

Laboratory Automation

Factory Automation

Research & Development

HEAD OFFICE

KIBITSU FACTORY

TOKYO OFFICE

OSAKA OFFICE

No.6 KUME, KITA-KU, OKAYAMA-CITY 701-0144 JAPAN

2292-1 KIBITSU, KITA-KU, OKAYAMA-CITY 701-1341 JAPANPHONE : +81-86-287-9030   FAX : +81-86-287-2298

SHINBASHI SN BLDG. 5-7-10 SHINBASHI, MINATO-KU, TOKYO 105-0004 JAPANPHONE : +81-3-3578-8515   FAX : +81-3-3578-8516

8F, NLC SHIN-OSAKA EARTH-BLDG. 5-1-3 MIYAHARA, YODOGAWA-KU, OSAKA-CITY 532-0003 JAPANPHONE : +81-6-6394-8175   FAX : +81-6-6397-2632

Our product information is also available on